Turning axle-spindle.



s. A. DAVIS.

TURNING 4XLE SPINDLE. APPLICATION FILED APR. 22, 1908.

7 Patented Dec. 1, 1908. k

2 SHEETS-SHEET 1.

Grammy 8 S. A. DAVIS.

TURNING AXLE SPINDLE.

APPLIOATION FILED 11211.22, 1908.

905,410. Patented Dec. 1,1908.

' 2 SHEETS-SHEET 2.

wbzhtoi SAMUEL A. DAVIS, OF MARTEL, FLORIDA.

TURNING AXLE-SPINDLE To all whom it may concern:

Be it known that I, SAMUEL A. DAVIS, a citizen of the United States,residing at Martel, in the county of Marion, State of Florida, haveinvented certain new and useful Improvements in Turning Axle-Spindlesand I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make-and use the same.

This invention relates to axle spindles, more particularly to the classof devices of this character known as turning spindles, and has for oneof its objects to simplify and improve the construction and increase theefiiciency of devices of this character.

Another object of the invention is to provide a simply constructeddevice of this character which may be readily attached to anddisconnected from the body of the axle, and which may also bedismembered for replacing broken parts or other repairs, and which mayalso be readily lubricated without removing the wheel.

Another object of the invention is to materially cheapen theconstruction without decreasing the eliiciency and utility.

Another object of the invention is to produce a simply constructeddevice of this character which is strong and durable and not easilybroken or affected by contact with obstructions, such as trees, stumps,and the like.

Another object of the invention is to provide a device of this characterwhich may be readily adapted to vehicles of various sizes withoutmaterially changing the structure.

Another object of the invention is to provide a simply constructeddevice of this character wherein broken spokes may be readily replacedin the wheel without discarding the other parts of the structure, oreven removing the wheel from thespindle.

WVith these and other objects in view the invention consists in certainnovel features of construction hereafter shown and described and thenspecifically pointed out in the claim, and in the drawings illustratingthe preferred embodiment of the invention, Figure 1 is a longitudinalsectional elevation, Fig. 2 is a section on the line 2--2 of Fig. 1,and, Fig. 3 is an end elevation of the hub portion of the device withthe binding nut and the outer hub member removed.

Specification of Letters Patent.

Application filed April 22, 1908.

Patented Dec. 1, 1908.

Serial No. 428,550.

Fig. 1 is a sectional detail illustrating a modification in theconstruction.

The improved device comprises a tubular sleeve 10 having a half bearing11 for balls in the outer end, and a half bearing 12 for balls in theinner end, the inner end being also externally threaded as at 13.

The spindle represented at 14; extends through the sleeve 10 and isenlarged at the inner end as at 15 and with a half bearing 16 for ballsin the inner face of the projection 15, the half bearing 16 opposing thehalf bearings 12 of the sleeve, and supporting a plurality of balls 17between them, as shown.

The axle body represented at 18 is enlarged at the outer end as at 19and provided with a cavity 20 in the end and with the cavity internallythreaded at its outer end to engage the threaded portion 13 of thesleeve, by which means the axle is detachably united to the sleeve.

The outer end of the spindle 14: is reduced as at 21, and threadedexternally of the reduced portion as at 22. Bearing upon the portion 21of the spindle is a divided hub formed in two parts 23-2 1 and withspoke sockets 25 in the confronting faces of the two parts of the hub,the sockets adapted to receive the inner ends of the spokes 26, asshown.

Engaging the threaded portion 22 of the spindle is a binding nut 27,preferably provided with oppositely disposed apertures 28 to receive apin wrench of the usual construction to enable the nut to be applied. orremoved.

The inner hub member 24; is provided with a recess 29 hearing over theouter end of the sleeve 10, and against the bottom of which a pluralityof balls 30 bear, the balls supported in the half bearing 11 of thesleeve.

The reduced portion 21 of the spindle provides a shoulder 81 againstwhich the inner hub member 24 bears, and is clamped in that position bythe nut 27 and the outer hub member 23, as will be obvious.

An oil cup 32 of suitable construction is connected to the sleeve 10 bymeans of an aperture 33 in one side thereof, so that a suitablelubricant may be supplied to the interior of the sleeve and thuslubricate the same, the cavity 20 also receiving a share of thelubricant and serving as a reservoir therefor.

The spindle 14: is provided with an annura -E lar groove opposite theoilcup 32, and the inner face of the sleeve 10 is provided with alongitudinal groove 34:, the annular groove and the longitudinal grooveacting to distribute the lubricating material uniformly over the wholesurface of the journal, the rear end of the groove 34 leading into thespace between the enlarged end 15 of the spindle and the cavity 20 inthe axle, so that the lubricating material will fill this cavity andthus serve as a reservoir as above noted.

The balls 17-3O are arranged to bear upon the spindle as well as againstthe enlarged head 15 and the hub member 24:, and thus materially reducethe friction.

In Fig. 4 a modification in the construction is shown consisting inthreading the outer ends of the axle body 18 and providing an internallythreaded sleeve engaging the threaded end of the axle and the threads 13of the sleeve, and thus coupling the axle body to the sleeve. In thismodified construction a space 36 is formed between the outer end of theaxle body and the enlargement 15 of the spindle to form an oil reservoirsimilar to the oil reservoir 20 in the structure shown in Fig. 1. Themodification noted does not depart from the principle of the invention,as the operation is substantially the same as the structure shown inFig. 1.

By this simple means it will be obvious that a simply constructed deviceis produced which may be inexpensively manufactured, and applied atsmall expense to axle bodies of various kinds and for Various purposesand may be adapted by making slight modifications to vehicles of anycharacter from the lightest buggies to the heaviest automobiles orfreight trucks, and will operate with equal facility upon any form ofvehicle to which it may be attached.

What is claimed, is

A device of the class described comprising a tubular sleeve externallythreaded at the inner end, a spindle extending through said sleeve andwith an enlarged inner end hearing against the inner end of the same andwith a threaded outer end, a wheel hub mounted upon said spindle andprovided with arecess bearing over the outer end of said spindle, aclamp nut engaging the threaded end of said spindle and bearing againstsaid hub, an axle body having a recess in its end and internallythreaded and engaging the threaded portion of said sleeve, and means forsupplying lubricating material to the interior of said sleeve andfilling said sleeve and the cavity in said axle body.

In testimony whereof, I aflix my signature, in presence of twowitnesses.

SAMUEL A. DAVIS.

Witnesses:

D. A. CLARK, L. H. PlLLANs.

